Multiphase CFD-simulation of bubbly pipe flow: A code comparison

In the present work a set of closure relations suitable for adiabatic bubbly flow has been implemented in OpenFOAM. Selection of closure models has been based on previous experience with ANSYS-CFX. Great effort has been made to match all details of the models so that only residual differences due to different numerical procedures would be expected in the results. Unfortunately this was not the case and the value of one empirical model parameter had to be changed in order to obtain similar results. Under this provision the new open source implementation is validated and shown to be comparable to commercial codes.